<template>
  <div class="dash">
    <nav>
      <router-link to="/">Home</router-link> |
      <router-link to="/about/one">About</router-link> |
      <router-link to="/login">Login</router-link>
    </nav>
    <hr />
    <!-- 这里只渲染 Home 和 About -->
    <router-view></router-view>
  </div>
</template>